Synonymous for a shitty internet connection. The term was coined by Irish gamer DaithiDeNogla on a Call Of Duty: Zombies match when fellow Irish gamer The Terroriser was having connection issues.
*two guys playing Counter Strike*
Man 1: Dude, why do you keep lagging?!
Man 2: It's my McDonald's Internet, it's making me lag.
Man 1: Dude, why do you keep lagging?!
Man 2: It's my McDonald's Internet, it's making me lag.
by Iamthe1337teh1337er April 08, 2016

by Kappa// August 21, 2016

When your playing an online game and your internet connection is so laggy that you have no control of your game.
by Tj1700 April 18, 2016
